1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
package main
import (
"fmt"
"strconv"
"strings"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/libpodruntime"
"github.com/containers/libpod/libpod"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
portCommand cliconfig.PortValues
portDescription = `
podman port
List port mappings for the CONTAINER, or lookup the public-facing port that is NAT-ed to the PRIVATE_PORT
`
_portCommand = &cobra.Command{
Use: "port",
Short: "List port mappings or a specific mapping for the container",
Long: portDescription,
RunE: func(cmd *cobra.Command, args []string) error {
portCommand.InputArgs = args
portCommand.GlobalFlags = MainGlobalOpts
return portCmd(&portCommand)
},
Example: "CONTAINER-NAME [mapping]",
}
)
func init() {
portCommand.Command = _portCommand
flags := portCommand.Flags()
flags.BoolVarP(&portCommand.All, "all", "a", false, "Display port information for all containers")
flags.BoolVarP(&portCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
rootCmd.AddCommand(portCommand.Command)
}
func portCmd(c *cliconfig.PortValues) error {
var (
userProto, containerName string
userPort int
container *libpod.Container
containers []*libpod.Container
)
args := c.InputArgs
if c.Latest && c.All {
return errors.Errorf("the 'all' and 'latest' options cannot be used together")
}
if c.All && len(args) > 0 {
return errors.Errorf("no additional arguments can be used with 'all'")
}
if len(args) == 0 && !c.Latest && !c.All {
return errors.Errorf("you must supply a running container name or id")
}
if !c.Latest && !c.All {
containerName = args[0]
}
port := ""
if len(args) > 1 && !c.Latest {
port = args[1]
}
if len(args) == 1 && c.Latest {
port = args[0]
}
if port != "" {
fields := strings.Split(port, "/")
// User supplied at least port
var err error
// User supplied port and protocol
if len(fields) == 2 {
userProto = fields[1]
}
if len(fields) >= 1 {
p := fields[0]
userPort, err = strconv.Atoi(p)
if err != nil {
return errors.Wrapf(err, "unable to format port")
}
}
// Format is incorrect
if len(fields) > 2 || len(fields) < 1 {
return errors.Errorf("port formats are port/protocol. '%s' is invalid", port)
}
}
runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "could not get runtime")
}
defer runtime.Shutdown(false)
if !c.Latest && !c.All {
container, err = runtime.LookupContainer(containerName)
if err != nil {
return errors.Wrapf(err, "unable to find container %s", containerName)
}
containers = append(containers, container)
} else if c.Latest {
container, err = runtime.GetLatestContainer()
if err != nil {
return errors.Wrapf(err, "unable to get last created container")
}
containers = append(containers, container)
} else {
containers, err = runtime.GetRunningContainers()
if err != nil {
return errors.Wrapf(err, "unable to get all containers")
}
}
for _, con := range containers {
if state, _ := con.State(); state != libpod.ContainerStateRunning {
continue
}
if c.All {
fmt.Println(con.ID())
}
// Iterate mappings
for _, v := range con.Config().PortMappings {
hostIP := v.HostIP
// Set host IP to 0.0.0.0 if blank
if hostIP == "" {
hostIP = "0.0.0.0"
}
// If not searching by port or port/proto, then dump what we see
if port == "" {
fmt.Printf("%d/%s -> %s:%d\n", v.ContainerPort, v.Protocol, hostIP, v.HostPort)
continue
}
// We have a match on ports
if v.ContainerPort == int32(userPort) {
if userProto == "" || userProto == v.Protocol {
fmt.Printf("%s:%d\n", hostIP, v.HostPort)
break
}
} else {
return errors.Errorf("No public port '%d' published for %s", userPort, containerName)
}
}
}
return nil
}
|
